Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6557378 | Method for pressing oxynitride glass, disk of oxynitride glass made by said method, and pressing die for said method | Katsutoshi Takagi, Kazutaka Kunii, Naoya Fujiwara | 2003-05-06 |